Changes

Sets the alert status for a trendline with the specified ID number; . TL_SetAlert returns a value of 0 if alert status was successfully modified, and a value of -2 if the specified trendline ID number is invalid.

==== Usage ====<syntaxhighlight>TL_SetAlert(TL_ID,AlertStatus)</syntaxhighlight>

==== Parameters ==== [[:'''TL_ID]] ''' - a numerical expression specifying the trendline ID number.

[[:'''AlertStatus]] ''' - a numerical expression specifying the alert status for the trendline: ::'''0''' - Alert disabled.

0 ::'''1''' - Breakout intra-bar.:::Alert disabledtriggering conditions are evaluated intra-bar.:::An alert is triggered if the High crosses over the trendline or the Low crosses under the trendline.

1 ::'''2''' - Breakout intra-on close.:::Alert triggering conditions are evaluated at Close of a bar.:::An alert is triggered if the Close of the previous bar was below the trendline and the Close of the current bar is above the trendline, or if the Close of the previous bar was above the trendline and the Close of the current bar is below the trendline.

::'''3''' - Once Per Bar.:::Alert triggering conditions are evaluated intra-bar.:::An alert is triggered if on the High crosses over first crossover of the trendline or within the Low crosses under the trendline. Alert triggering conditions bar, all subsequent triggers within this bar are evaluated intra-barignored.

2 - Breakout on close  An alert is triggered if the Close of the previous bar was below the trendline and the Close of the current bar is above the trendline, or if the Close of the previous bar was above the trendline and the Close of the current bar is below the trendline. Alert triggering conditions are evaluated at Close of a bar. ==== Notes ==== * A trendline-specific ID number is returned by [[TL_New]] when the trendline is created. * Use [[TL_GetAlert]] to get the alert properties of an already existing trendline.

==== Example ====

<syntaxhighlight>Value1=TL_SetAlert(3,2);</syntaxhighlight>